Sousveillance (IPA: [suːˈveɪləns], original French [suvɛjɑ̃s]) as well as inverse surveillance are terms coined by Steve Mann to describe the recording of an activity from the perspective of a participant in the activity,[1] typically by way of small portable or wearable recording devices that often stream continuous live video to the Internet.
Inverse surveillance is a proper subset of sousveillance with a particular emphasis on “watchful vigilance from underneath” and a form of surveillance inquiry or legal protection involving the recording, monitoring, study, or analysis of surveillance systems, proponents of surveillance, and possibly also recordings of authority figures and their actions. Inverse surveillance is typically an activity undertaken by those who are generally the subject of surveillance, and may thus be thought of as a form of ethnography or ethnomethodology study (i.e. an analysis of the surveilled from the perspective of a participant in a society under surveillance).[2]